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HomeMy WebLinkAbout20071104 Ver 1_Approval Letter_20070609oFWATFR O~ '~pG '~ i ~ >~ ,r July 9, 2007 Jackson County DWQ Project No. 071104 NCSR 1109 (Garnet Hill Road) APPROVAL of 401 Water Quality Certification with Additional Conditions Mr. J. B. Setzer, P.E. Division Engineer N C Department of Transportation 253 Webster Road Sylva, North Carolina 28779 Dear Mr. Setzer: You have our approval, in accordance with the attached conditions and those listed below, for the following impacts in an unnamed tributary to Norton Mill Creek, for the purpose of making improvements to NCSR 1109, Garnet Hill Road in Jackson County: Stream Impacts in the Savannah River Basin Site Permanent Fill Temporary Fill in Permanent Fill in Temporary Total Stream Stream in Intermittent Intermittent Stream Perennial Stream Dewatering in Impact Impacts Stream (linear (linear ft) (linear ft) Perennial Stream (linear ft) Requiring ft) (linear ft) Mitigatio n (linear ft Station 50 110 160 0 13+81 Total 50 110 160 0 Total Stream Permanent Impact for Project: SO linear feet. Temporary Impact: 1101inear feet. The project should be constructed in accordance with your application dated June 19, 2007 (received June 25, 2007), including the environmental commitments made in the application letter. After reviewing your application, we have decided that these impacts are covered by General Water Quality Certification Nos. 3627 and 3634. This Certification corresponds to Nationwide Permit Numbers 14 and 33 issued by the U.S. Army Corps of Engineers. In addition, you should acquire any other federal, state or local permits before you proceed with your project including (but not limited to) Sediment and Erosion Control, Non-Discharge and Water Supply Watershed regulations. This approval will expire with the accompanying 404 Permit. This approval is valid solely for the purpose and design described in your application (unless modified below). Should your project change, you must notify the DWQ and submit a new application. If the property is sold, the new owner must be given a copy of this Certification and approval letter, and is thereby responsible for complying with all conditions. If total wetland fills for this project (now or in the future) exceed one acre, or if total impacts to streams (now or in the future) exceed 150 linear feet, compensatory mitigation may be required as described in 15A NCAC 2H .0506 (h) (6) and (7). For this approval to be valid, you must follow the conditions listed in the attached certification and any additional conditions listed below. Noe Carolina ~tura!!y North Carolina Division of Water Quality 2090 U.S. Highway 70 Swannanoa, NC 28778 Phone (828) 296-4500 Customer Service Internet: www.ncwaterquality.org FAX (828) 299-7043 1-877-623-6748 Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Coleen H. Sullins, Director Division of Water Quality An Equal OpportunitylAffirmative Action Employer Mr. J. B. Setzer, P.E. __ July 9, 2007.... Page Two 1. Erosion and sediment control practices must be in full compliance with all specifications governing the proper design, installation and operation and maintenance of such Best Management Practices in order to protect surface waters standards: a. The erosion and sediment control measures for the project must be designed, installed, operated, and maintained in accordance with the most recent version of the North Carolina Sediment and Erosion Control Planning and Design Manual. b. The design, installation, operation, and maintenance of the sediment and erosion control measures must be such that they equal, or exceed, the requirements specified in the most recent version of the North Carolina Sediment and Erosion Control Manual. The devices shall be maintained on all construction sites, borrow sites, and waste pile (spoil) projects, including contractor-owned or leased borrow pits associated with the project. c. For borrow pit sites, the erosion and sediment control measures must be designed, installed, operated, and maintained in accordance with the most recent version of the North Carolina Surface Mining Manual. d. The reclamation measures and implementation must comply with the reclamation in accordance with the requirements of the Sedimentation Pollution Control Act. 2. There shall be no excavation from or waste disposal into, jurisdictional wetlands or waters associated with this permit without appropriate modification. Should waste or borrow sites be located in wetlands or streams, compensatory mitigation will be required since that is a direct impact from road construction activities. 3. Sediment and erosion control measures shall not be placed in wetlands or waters unless otherwise approved by this Certification. If placement of sediment and erosion control devices in wetlands and waters is unavoidable, they shall be removed and the natural grade restored upon completion of the project. 4. Placement of culverts and other structures in waters, streams and wetlands, shall be placed below the elevation of the streambed by one foot for all culverts with a diameter greater than 48-inches, and 20 percent of the culvert diameter for culverts having a diameter less than 48-inches, to allow low flow passage of water and aquatic life. Design and placement of culverts and other structures including temporary erosion control measures shall not be conducted in a manner that may result in dis-equilibrium of wetlands, streambeds or banks, adjacent to, or upstream and down stream of the above structures. The applicant is required to provide evidence that equilibrium is being maintained, if requested in writing by DWQ. If this condition is unable to be met due to bedrock or other limiting features encountered during construction, please contact the NC DWQ for guidance on how to proceed and to determine whether or not a permit modification will be required. 5. The permittee shall use /Design Standards in Sensitive Watersheds/ [15A NCAC 4B.0124 (a)-(e)]. Temporary cover (wheat, millet or similar annual grain) or permanent herbaceous cover should be planted on all bare soil within fifteen (15) days of ground disturbing activities to provide long-term erosion control. Erosion control mating should be used in conjunction with appropriate seeding on disturbed soils in steep slope and riparian areas. Steep slopes are defined as those slopes graded at an angle, which cannot retain vegetative cover. Matting shall be secured in place with staples or wherever possible, live stakes of native trees. Straw mulch and tall fescue shall not be used in riparian areas. 6. In-stream work and land disturbance within the 25-foot wide buffer zone are prohibited during the trout-spawning season of October 15 through April 15 to protect the egg and fry stages of trout from off-site sedimentation during construction of the roadway. 7. For projects impacting waters classified by the NC Environmental Management Commission as Trout (Tr), High Quality Waters (HQW) or Water Supply I or II (WS-I, WS-II), stormwater shall be directed to vegetated buffer areas, grass-lined ditches or other means appropriate to the site for the purpose of pre-treating stormwater runoff prior to discharging directly into streams. Mowing of existing vegetated buffer areas is strongly discouraged. 8. The dimension, pattern and profile of the stream, above and below the crossing, shall not be modified. Disturbed floodplains and streams shall be restored to natural geomorphic conditions. 9. Native riparian vegetation (e.g. rhododendron, dog hobble, willows, alders, sycamores, dogwoods, black walnut and red maple) must be reestablished within the construction limits of the project by the end of the growing season following completion of construction. Mr. J. B. Setzer, P.E. July 9, 2007 Page Three 10. Riprap shall not be placed in the active thalweg channel or placed in the streambed in such a manner that precludes .aquatic life passage. Bioengineering boulders or structures should be properly designed, sized and installed. 11. The use of riprap above the Normal High Water Mark shall be minimized. Any riprap placed for stream stabilization shall be placed in stream channels in such a manner that it does not impede aquatic life passage. 12. Heavy equipment shall be operated from the banks rather than in the stream channels in order to minimize sedimentation and reduce the introduction of other pollutants into the stream. 13. All mechanized equipment operated near surface waters must be regularly inspected daily and maintained to prevent contamination of stream waters from fuels, lubricants, hydraulic fluids,' or other toxic materials. 14. Rock check dams at culvert outlets should be removed at project completion to avoid impeding aquatic life movement. 15. All work in or adjacent to stream waters shall be conducted in a dry work area. Approved BMP measures from the most current version of NCDOT Construction and Maintenance Activities manual such as sandbags, rock berms, cofferdams and other diversion structures should be used to prevent excavation in flowing water. 16. Discharging hydroseed mixtures and washing out hydroseeders and other equipment in or adjacent to surface waters is prohibited. 17. If concrete is used during construction (e.g., headwalls), a dry work area shall be maintained to prevent direct contact between curing concrete and stream water. Water that inadvertently contacts uncured concrete shall not be discharged to surface waters due to the potential for elevated pH and possible aquatic life and fish kills. 18. No rock, sand or other materials shall be dredged from the stream channel, except where authorized by this certification. 19. A copy of this Water Quality Certification shall be maintained on site at the construction site at all times. In addition, the Water Quality Certification and all subsequent modifications, if any, shall be maintained with the Division Engineer and the on-site project manager. 20. The permittee and its authorized agents shall conduct its activities in a manner consistent with State water quality standards (including any requirements resulting from compliance with §303(d) of the Clean Water Act) and any other appropriate requirements of State or Federal law. If DWQ determines that such standards or laws are not being met (including failure to sustain a designated achieved use) or that State of Federal law if being violated, or that further conditions are necessary to assure compliance, DWQ may reevaluate and modify this certification. 21. This certification does not authorize the discharge of waste rock and dirt into the stream or riparian zone except for permitted areas associated with the bank stabilization work. 22. During the construction of the project, no staging of equipment of any kind is permitted in waters of the U.S. or protected riparian buffers. 23. Upon completion of the project, the NCDOT Division Engineer shall complete and return the enclosed "Certificate of Completion Form" to notify NCDWQ when all work included in the §401 Certification has been completed. This form shall be returned to the Transportation Permitting Unit of the NC Division of Water Quality, 2321 Crabtree Blvd., Suite 250, Raleigh, North Carolina 27604. If you do not accept any of the conditions of this certification, you. may ask for an adjudicatory hearing. You must act within 60 days of the date that you receive this letter. To ask for a hearing, send a written petition, which conforms to Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, N.C. 27699-6714. This certification and its conditions are final and binding unless you ask for a hearing. Mr. J. B. Setzer, P.E. July 9, 2007 Page Four This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act. If you have any questions, please telephone Mr. Mike Parker of the Asheville Regional Office at 828-296-4500. Sincerely, ~81 Coleen H. Sullins, Director Division of Water Quality cc: Mark Davis, Division 14, DEO Ed Ingle, Roadside Environmental David Baker, USACE Asheville Field Office Transportation Permitting Unit Mike Parker, Asheville Regional Office